RDF

RDF (Resource Description Framework) provides simple semantics for describing resources and the relationships between resources, on the Web. Representations encoded in RDF are machine readable and can be exchanged between software applications and published on the World Wide Web.

RDF enables the formulation of statements about web resources in the form of “triples”; that is, subject-predicate-object expressions (for example, “this chapter” “has creator” “Alan Danskin”). In RDF terms each component of this statement is a “resource”, which can be represented by a Uniform Resource Identifier (URI) . The whole statement can therefore be expressed in terms that a machine can process.